645403976

素因数分解:

$2^3\times 7^1\times {\mathrm{11525071}}^1$

素因数の和:11525084

約数の個数: 16

約数和(自身を含む): 1383008640

約数和(自身を除く): 737604664

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 11525071, 23050142, 46100284, 80675497, 92200568, 161350994, 322701988, 645403976]

約数ペア:

[(1, 645403976), (2, 322701988), (4, 161350994), (7, 92200568), (8, 80675497), (14, 46100284), (28, 23050142), (56, 11525071)]